Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Passlock™ Learn Procedures
Important: If any module is replaced, programming the module must be done prior to performing the Passlock™ Learn procedure.
Perform the Learn Procedure if any of the following components have been replaced:
- The Passlock™ sensor
Refer to PROGRAMMING THEFT DETERRENT SYSTEM COMPONENTS for the proper procedure.
- The body control module (BCM)
- The powertrain control module (PCM)
Refer to POWERTRAIN CONTROL MODULE for the proper procedure.
Important: After programming, perform the following to avoid future misdiagnosis:
- Turn the ignition OFF for 10 seconds.
- Connect the scan tool to the data link connector.
- Turn the ignition ON with the engine OFF.
- Use the scan tool in order to retrieve History DTCs from all modules.
- Clear all history DTCs.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.